Step-by-step jacking system for water conservancy gate

Abstract

The invention discloses a water conservancy gate step-by-step jacking system which comprises a gate and gate piers arranged on the two sides of the gate, first locking pieces are arranged on the gate piers, a plurality of matching parts distributed in the height direction are arranged on the two sides of the gate, and the first locking pieces and the matching parts can be selectively locked; the jacking device is arranged on the gate pier, and the jacking device is provided with a vertically telescopic jacking rod; the bearing assembly is arranged at the top of the jacking rod; the lifting device is arranged on the bearing assembly and located above the gate, the lifting device is provided with a vertically-telescopic lifting rod, and the lifting rod is arranged in the gate in a penetrating mode. According to the step-by-step jacking system for the water conservancy gate, through step-by-step cooperative action of the jacking device and the lifting device, primary large-stroke lifting can be achieved through the lifting device, then multiple times of jacking are conducted through the jacking device, the jacking frequency of the jacking device is reduced, the lifting height of the gate can be flexibly controlled, and the working efficiency is improved. And the precise jacking requirements under different working conditions are met.

Description

Technical Field

[0001] This invention relates to the field of hydraulic gate technology, and in particular to a hydraulic gate step-by-step lifting system. Background Technology

[0002] In water conservancy projects, gates are key facilities for controlling water flow, and the reliability, safety, and operational efficiency of their opening and closing systems directly affect the overall function of the water conservancy hub. Currently, gate opening and closing mostly adopts winch-type gate hoists, which connect the gate through transmission structures such as wire ropes and pulley blocks to realize the gate's lifting and lowering operation. To meet the gate opening and closing stroke requirements, traditional fixed winch-type gate hoists usually require the installation of a high-frame hoist platform to provide sufficient installation space and operating height. For example, in some projects, the height of the frame hoist platform can reach 26m, with the overall structure having a total height of approximately 33.2m. However, such high-frame structures have many problems in practical applications: on the one hand, the high center of gravity of the high-frame structure itself is high, and the stiffness distribution is uneven, making it prone to large vibration responses under seismic loads, resulting in weak seismic performance and posing potential risks to the safe and stable operation of the water conservancy hub; on the other hand, there is a large height difference between the high-frame platform and the dam surface, making the design of maintenance access difficult, and the convenience of daily maintenance, fault diagnosis, and component replacement for staff is poor, significantly restricting the efficiency of operation and maintenance. Meanwhile, the construction period of the high-rise structure is long and the amount of materials consumed is large, which not only increases the project cost, but its huge size also has a certain impact on the overall aesthetics of the dam surface. Summary of the Invention

[0003] The main objective of this invention is to provide a step-by-step lifting system for hydraulic gates to solve the problems of high center of gravity and weak seismic performance in existing high-bay structures.

[0004] To achieve the above objectives, this application proposes a step-by-step lifting system for hydraulic gates, comprising: The gate and gate piers are provided on both sides of the gate. The gate piers are provided with a first locking member. The gate is provided with a plurality of mating parts distributed along the height on both sides. The first locking member can selectively lock with the mating parts. A lifting device is installed on the gate pier, and the lifting device has a vertically telescopic lifting rod; A support assembly, wherein the support assembly is disposed at the top of the lifting rod; A lifting device is provided on the bearing assembly and located above the gate. The lifting device has a vertically telescopic lifting rod that passes through the gate.

[0005] According to the hydraulic gate step-lifting system of this application, the bearing component includes a first bearing member and a second bearing member that are stacked and separable in the vertical direction. The lifting device is disposed on the first bearing member. The second bearing member is connected to the lifting rod. The second bearing member is provided with a second locking member, which can selectively lock with the mating part.

[0006] Optionally, the bottom of the first support member is provided with a protrusion, and the top of the second support member is provided with a groove adapted to the protrusion. When the first support member and the second support member are stacked, the protrusion is embedded in the groove.

[0007] Optionally, the first support member includes a connecting portion disposed in the middle and a balancing portion located on both sides of the connecting portion, the balancing portion extending along the width direction of the gate, and the connecting portion being connected to the lifting device.

[0008] Optionally, the second support member includes a frame surrounding the outer periphery of the gate, the frame forming a clearance passage for the gate to pass through.

[0009] According to the hydraulic gate step-lifting system of this application, the mating part is a support block. The first locking member and the second locking member both include rotatable support claws. The support claws can rotate between a locked position and an unlocked position. When the support claws are in the locked position, the free end of the support claws extends upward at an angle and abuts against the bottom surface of the support block. When the support claws are in the unlocked position, the support claws rotate upward and the free end of the support claws disengages from below the support block.

[0010] Optionally, the hydraulic gate step-by-step lifting system also includes: The control module includes a pressure sensor at the stop point between the support claw and the support block. The pressure sensor, the lifting device, and the hoisting device are all communicatively connected to the control module. The pressure sensor generates a pressure signal and sends it to the control module. The control module is configured as follows: When the pressure value determined by the pressure signal is lower than the preset locking pressure, the lifting device and the hoisting device are prohibited from starting. The support claw is driven to reset from the locked position to the unlocked position and then rotate back to the locked position to lock the support block. The prohibition on starting the lifting device and the hoisting device is lifted when the pressure value determined by the pressure signal reaches or exceeds the preset locking pressure.

[0011] Optionally, the control module is further configured to: After the support claw rotates from the unlocked position to the locked position, the gate is controlled to move downward so that the support block abuts against the corresponding support claw.

[0012] According to the hydraulic gate step-by-step lifting system of this application, the lifting device is a piston-type hydraulic gate opener, and the jacking device is a plunger-type hydraulic gate opener.

[0013] According to the hydraulic gate step-lifting system of this application, the stroke of the lifting device lifting the gate in a single operation is greater than the stroke of the jacking device lifting the gate in a single operation.

[0014] The technical solutions provided by the embodiments of the invention have the following advantages compared with the prior art: The hydraulic gate step-by-step lifting system provided in this embodiment of the invention, when started, the lifting device on the bearing assembly pulls the gate upward to a preset height via the lifting rod. Then, the first locking member is locked with the mating parts on both sides of the gate to form a stable support for the gate. After the gate is stable, the first locking member is switched to the unlocked state, and the lifting device on the gate pier drives the lifting rod to extend, driving the bearing assembly at the top to rise as a whole. When the bearing assembly reaches the new support position, the first locking member is locked with the mating parts on both sides of the gate to form a stable support for the gate, realizing the continuous step-by-step lifting of the gate.

[0015] The hydraulic gate step-by-step lifting system provided in this embodiment of the invention features a selective locking mechanism between the first locking component and the mating part. This ensures that the gate is always reliably supported during the lifting process, avoiding the risk of falling without support and improving operational safety. The step-by-step coordinated operation of the lifting device and the hoisting device, by setting two different gate lifting devices, allows for an initial large-stroke lift via the hoisting device, followed by multiple lifts via the lifting device. This reduces the number of lifts required by the lifting device and allows for flexible control of the gate's rising height, making it suitable for precise lifting requirements under different working conditions. Attached Figure Description

[0016] Figure 1 The hydraulic gate step-by-step lifting system provided in this embodiment of the invention is wherein the gate is in the fully closed position.

[0017] Figure 2 The hydraulic gate step-by-step lifting system provided in this embodiment of the invention includes a lifting device that lifts the gate in one step using its lifting rod.

[0018] Figure 3 The diagram shows a step-by-step lifting system for a hydraulic gate provided in an embodiment of the present invention, wherein a first locking element locks the gate.

[0019] Figure 4 The diagram shows a step-by-step jacking system for a hydraulic gate provided in an embodiment of the present invention, wherein the jacking rod of the jacking device jacks the gate in one step.

[0020] Figure 5The figure shows a step-by-step jacking system for a hydraulic gate provided in an embodiment of the present invention, wherein the jacking rod of the jacking device jacks the gate once and then resets.

[0021] Figure 6 The diagram shows a step-by-step lifting system for a hydraulic gate provided in an embodiment of the present invention, wherein the lifting rod of the lifting device lifts the gate in a secondary manner.

[0022] Label Explanation: Gate 10, mating part 11, gate pier 20, first locking part 21, lifting device 30, lifting rod 31, lifting device 40, lifting rod 41, bearing assembly 50, first bearing part 51, second bearing part 52, second locking part 521. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0025] like Figures 1-4 As shown, the hydraulic gate step-by-step lifting system according to an embodiment of this application includes: a gate 10 and gate piers 20, lifting device 30, bearing component 50 and lifting device 40 disposed on both sides of the gate 10.

[0026] The gate pier 20 is provided with a first locking member 21, and the gate 10 is provided with multiple mating parts 11 distributed along the height on both sides. The first locking member 21 can selectively lock with the mating parts 11. The lifting device 30 is provided on the gate pier 20 and has a vertically telescopic lifting rod 31. The bearing assembly 50 is provided on the top of the lifting rod 31. The lifting device 40 is provided on the bearing assembly 50 and located above the gate 10. The lifting device 40 has a vertically telescopic lifting rod 41, which passes through the gate 10.

[0027] The gate 10 is the main structure in the water conservancy facility used to control water flow. Multiple mating parts 11 are arranged at intervals along the height direction on both sides of the gate 10. The gate 10 is fixed in position by selectively locking with the first locking member 21 on the gate pier 20. A through hole is provided in the middle of the gate 10 for the lifting rod 41 of the lifting device 40 to pass through, so that the lifting device 40 can drive the gate 10 to achieve vertical displacement.

[0028] The gate pier 20 is a concrete or steel structure support symmetrically arranged on both sides of the gate 10. A lifting device 30 is installed on its top, and a first locking element 21 is installed on its side near the gate 10. The gate pier 20 is fixed to the foundation of the hydraulic structure by pre-embedded anchor bolts or by pouring concrete, providing a stable installation foundation for the entire lifting system.

[0029] The lifting device 30 is a power-driven device installed on the top of the gate pier 20, and may include hydraulic cylinders, motor-driven screws, or pneumatic push rods, with the core component being a vertically extendable lifting rod 31. The top of the lifting rod 31 is rigidly connected to the bearing assembly 50, and through periodic extension and contraction, it drives the bearing assembly 50 and the lifting device 40 to rise and fall as a whole. The lifting device 30 can integrate a pressure feedback module, which can monitor the lifting force in real time and achieve synchronous precision control through a control module.

[0030] The lifting equipment is installed on top of the gate pier 20 and provides lifting power. It has a vertically retractable lifting rod 31, which outputs lifting force through the extension and retraction of the lifting rod 31, driving the subsequent components to raise and lower the gate 10. The number of lifting equipment can be set as needed. For medium-sized gates 10 or under normal operating conditions, two lifting equipment are usually arranged symmetrically. The two devices are installed on the top of the gate piers 20 on both sides and are symmetrically distributed about the central axis of the gate 10. For large, extra-wide, or extra-heavy gates 10, three or more lifting equipment can be set as needed. For example, the number of lifting equipment is four, with two lifting equipment installed in the gate piers 20 on both sides of the gate 10. The two lifting equipment on the same side are spaced apart along the width direction of the gate 10, and the four corner ends of the second bearing member 52 are connected to the lifting rod 31 of the lifting equipment.

[0031] The load-bearing assembly 50 is a frame structure installed at the top of the lifting rod 31. The lifting device 40 is fixed to its top platform, and the bottom is connected to the lifting rod 31 via flanges or welding. The load-bearing assembly 50 adopts a box beam or truss structure. The output end of the lifting device 40 is connected to a vertically telescopic lifting rod 41. The lifting rod 41 passes through a through hole in the middle of the gate 10 and is fixed to the gate 10 by nuts or pins. The extension and retraction of the lifting rod 41 directly drives the gate 10 to rise and fall. The lifting device 40 is equipped with an overload protection device that automatically stops when the lifting force exceeds a set threshold to prevent structural overload damage.

[0032] A lifting rod 41, movably connected to the gate 10, is installed inside the gate 10. A channel is typically reserved during the prefabrication stage of the gate 10. The lifting rod 41 is positioned within this channel, allowing it to move vertically relative to the gate 10. Common shapes for the lifting rod 41 include cylindrical steel rods or square-section rods, often made of high-strength alloy steel to withstand the lifting load. The shape of the channel on the gate 10 matches the lifting rod 41; circular holes accommodate cylindrical lifting rods 41, while square holes accommodate square lifting rods 41. The number and arrangement of the lifting devices 40 must match the size and load requirements of the gate 10: small gates 10 may have a single lifting device 40 located on the central axis of the gate 10's width; medium to large gates 10 typically have 2-4 lifting devices 40 symmetrically distributed along the width of the gate 10.

[0033] At startup, such as Figures 1-2 As shown, the lifting device 40 on the bearing assembly 50 pulls the gate 10 upward to a preset height via the lifting rod 41, and then, as... Figure 3 The control mechanism 21 locks the first locking element 21 with the mating parts 11 on both sides of the gate 10, forming a stable support for the gate 10. After the gate 10 is stable, the first locking element 21 switches to the unlocked state, and the lifting device 30 on the gate pier 20 drives the lifting rod 31 to extend upwards as shown. Figure 4 As shown, the top support component 50 is raised as a whole. When the support component 50 reaches the new support position, the first locking member 21 is locked with the mating parts 11 on both sides of the gate 10 to form a stable support for the gate 10, so as to realize the continuous step-by-step raising of the gate 10.

[0034] According to the step-by-step lifting system for hydraulic gates in this application embodiment, the selective locking mechanism of the first locking member 21 and the cooperating part 11 ensures that the gate 10 always has reliable support during the lifting process, avoiding the risk of falling in an unsupported state and improving operational safety. The step-by-step coordinated action of the lifting device 30 and the lifting device 40, by setting two different lifting devices for the gate 10, allows for an initial large-stroke lifting by the lifting device 40, followed by multiple lifting by the lifting device 30, reducing the number of lifting times of the lifting device 30. This allows for flexible control of the rising height of the gate 10 and is suitable for precise lifting requirements under different working conditions.

[0035] like Figures 1-4 As shown, in the hydraulic gate step-by-step lifting system according to the embodiment of this application, the bearing component 50 includes a first bearing member 51 and a second bearing member 52 that are stacked and separable in the vertical direction. The lifting device 40 is disposed on the first bearing member 51. The second bearing member 52 is connected to the lifting rod 31. The second bearing member 52 is provided with a second locking member 521, which can be selectively locked with the mating part 11.

[0036] In the initial state, the two components are stacked vertically to form a unified load-bearing assembly 50, providing a stable basic load-bearing structure for system startup. After the second load-bearing component 52 completes its lifting action and returns to its initial position, it will re-overlap with the first load-bearing component 51 to ensure accurate starting posture for the next cycle. After the gate 10 descends to the lowest position of its stroke, the two components are stacked again to reduce space occupation and maintain structural stability. The separation state occurs during the process of the lifting device 30 driving the second load-bearing component 52 to rise: as the second load-bearing component 52 moves upward under the push of the lifting rod 31, it gradually separates from the first load-bearing component 51, forming a gap. This separation allows the second load-bearing component 52 to independently complete its lifting stroke, providing displacement space for the stepped rise of the gate 10.

[0037] The second locking element 521 can selectively lock, meaning it has a controllable state switching capability and can switch between locked and unlocked states according to the system operation process requirements.

[0038] After activation, the lifting device 40 on the first bearing member 51 drives the lifting rod 41 to extend, thereby lifting the gate 10 upward to the height of the adjacent mating part 11 (from the gate 10...). Figure 1 Move to the middle position Figure 2 (as shown in the image); at this time, the first bearing member 21 rotates to the locked position, and its supporting surface is rigidly fitted with the mating part 11 of the gate 10 at the new height (as shown in the image). Figure 3 As shown), after the control module confirms reliable locking through pressure feedback, the first locking member 21 unlocks and disengages from the original mating part 11. Subsequently, the lifting device 30 drives the lifting rod 31 to extend, pushing the second bearing member 52 and the stacked first bearing member 51 to move upward synchronously (as shown). Figure 4 (As shown). When the first locking member 21 reaches the preset lifting height, the second bearing member 52 resets and locks with the mating part 11 at the current height of the gate 10, forming a new load support point as shown. Figure 5 As shown, the second locking member 521 is locked with the mating part 11. After confirming that the second locking member 521 is stable, the first locking member 21 is unlocked, and the lifting device 30 drives the second bearing member 52 to rise again. Since the gate 10 is rigidly fixed to the second bearing member 52 through the cooperation of the second locking member 521 and the mating part 11, it rises synchronously with the second bearing member 52, eventually moving the gate 10 to the highest point of the preset stroke. Then, the first locking member 21 is controlled to lock the corresponding mating part 11, so that the gate 10 is more stable when it is at the highest point.

[0039] Gate 10 is at the highest point of the preset travel, such as Figure 6 As shown, the first support member 51 and the second support member 52 are spaced apart. When the gate 10 needs to be lowered, the first locking member 21 is unlocked and reset, while the second locking member 521 and the mating part 11 remain locked. Then, the lifting device 30 drives the lifting rod 31 to retract, causing the second support member 52 and the gate 10 to move downwards synchronously. After that, the first locking member 21 is rotated to the locked position, and its supporting surface is rigidly attached to the mating part 11 at the current height of the gate 10 to bear the load. After the full contact and force are received, the second locking member 521 is unlocked and disengaged from the original mating part 11, completing the transfer of load from the second locking member 521 to the first locking member 21. Next, the lifting device 30 drives the lifting rod 31 to extend, pushing the second bearing member 52 upward until it re-overlaps with the spaced first bearing member 51. After confirming stable overlap, the first locking member 21 unlocks and disengages from the mating part 11. The lifting device 30 drives the lifting rod 31 to retract, causing the first bearing member 51, the second bearing member 52, and the gate 10 to fall and reset. After the second bearing member 52 returns to its initial position, the first locking member 21 is controlled to rotate to the locked position. After the gate 10 stabilizes, the lifting device 40 drives the lifting rod 41 to extend downward, thereby moving the gate 10 to the lowest point of its stroke. Figure 1 As shown.

[0040] According to the embodiment of this application, the step-by-step lifting system for hydraulic gates breaks through the stroke limitation of a single lifting device 40 or lifting device 30. Through the spacing design of adjacent cooperating parts 11, the total lifting height of the gate 10 is decomposed into several single strokes. With the action of the first bearing member 51 and the second bearing member 52, the system can flexibly adapt to the lifting requirements of different heights. It is especially suitable for the ultra-high elevation opening and closing scenarios of ultra-large gates 10. The entire stroke operation can be completed on the basis of the original height of the gate pier 20 without the need to set up a high frame.

[0041] In some embodiments, the bottom of the first support member 51 is provided with a protrusion, and the top of the second support member 52 is provided with a groove adapted to the protrusion. When the first support member 51 and the second support member 52 are stacked, the protrusion is embedded in the groove.

[0042] The first support member 51 is located above the second support member 52. In the initial stacked state, the protrusion at the bottom of the first support member 51 is precisely embedded in the matching groove at the top of the second support member 52, forming a mechanical positioning constraint. When the first support member 51 is locked together with the gate 10 by the first locking member 21, the second support member 52 will separate from the first support member 51 when it is reset by the lifting device 30. At this time, the protrusion at the bottom of the first support member 51 remains stationary with the first support member 51, and the groove at the top of the second support member 52 moves downward with it, and the protrusion gradually disengages from the groove, realizing the separation of the first support member 51 and the second support member 52, providing independent displacement space for the subsequent lifting and lowering action of the gate 10. Afterwards, when the gate 10 needs to be closed, the first support member 51 and the second support member 52 are re-stacked in the corresponding steps.

[0043] According to the embodiment of the present application, the step-by-step lifting system of the hydraulic gate has a protrusion and a groove that provide guidance when the first bearing member 51 and the second bearing member 52 are restored from the separated state to the stacked state, avoiding offset errors, thereby ensuring that the gate 10 can move smoothly between the gate piers 20 without getting stuck.

[0044] In some embodiments, the first support member 51 includes a connecting portion disposed in the middle and a balancing portion located on both sides of the connecting portion. The balancing portion extends along the width direction of the gate 10, and the connecting portion is connected to the lifting device 40.

[0045] The connecting portion in the middle of the first bearing member 51 is connected to the lifting device 40, which makes the lifting device 40 more stable when lifting the gate 10. The balancing portions on both sides extend along the width direction of the gate 10, forming a symmetrically distributed overall structure with the connecting portions. When the second bearing member 52 transmits the lifting force through the balancing portions, the balancing portions expand their contact range with the second bearing member 52 by extending along the width direction, distributing the concentrated load to multiple stress points of the second bearing member 52. At the same time, the symmetrical structure counteracts any possible lateral moments, keeping the first bearing member 51 stably supported on the second bearing member 52 and preventing tilting or swaying caused by uneven load distribution.

[0046] According to the hydraulic gate step-by-step lifting system of this application embodiment, the extension design of the balance part along the width direction significantly increases the contact area between the first bearing member 51 and the second bearing member 52, reduces the stress intensity per unit area, and reduces the risk of wear and deformation of the local structure of the second bearing member 52; the overall structure formed by the symmetrically distributed balance part and the connecting part can effectively balance the eccentric torque transmitted by the transmission component, improve the stability of the first bearing member 51 during the lifting process, and avoid structural overturning caused by excessive force on one side.

[0047] In some embodiments, the second support member 52 includes a frame surrounding the outer periphery of the gate 10, the frame forming an obstacle passage through which the gate 10 passes.

[0048] During the lifting process, the frame surrounds the gate 10 in a non-contact manner by circling the gate 10. The size of the clearance channel is slightly larger than the outer size of the gate 10, ensuring that the gate 10 can pass smoothly along the channel during the lifting process and avoid mechanical interference with the frame.

[0049] According to the hydraulic gate step-by-step lifting system of this application embodiment, the mating part 11 is a support block, and the first locking member 21 and the second locking member 521 both include rotatable support claws. The support claws can rotate between the locked position and the unlocked position. When the support claws are in the locked position, the free end of the support claws extends upward at an angle and abuts against the bottom surface of the support block. When the support claws are in the unlocked position, the support claws rotate upward and the free end of the support claws disengages from below the support block.

[0050] Figure 1 The image shows the gate 10 at its lowest position, i.e., fully closed. Figure 6 This shows that the gate 10 is in the highest position of its stroke, i.e., the fully open position.

[0051] When the gate 10 is at its lowest position due to gravity, the support claws of the first locking member 21 and the second locking member 521 are both in the unlocked position, and the first bearing member 51 and the second bearing member 52 are stacked vertically. When the lifting program is started, the lifting device 40 lifts the gate 10 to a preset height, such as... Figure 2As shown, the support claw of the first locking member 21 first rotates from the unlocked position to the locked position, and its free end extends upward at an angle and abuts against the bottom surface of the lowest support block to form support. After the gate 10 is stable, the first locking member 21 rotates to the unlocked position, and the lifting device 30 drives the second bearing member 52 to rise. After reaching the preset height, the support claw of the first locking member 21 rotates to the locked position again and abuts against the bottom surface of the current support block. The second bearing member 52 resets. Then, the support claw of the second locking member 521 rotates to the locked position, and its free end abuts against the bottom surface of the new height support block to bear the load. After confirming that the second locking member 521 is locked reliably, the support claw of the first locking member 21 rotates upward to the unlocked position to disengage from the original support block. The lifting device 30 drives the second bearing member 52 to drive the gate 10 to rise again.

[0052] The support claws employ a rotatable locking and unlocking design, utilizing the inclined surface contact characteristics to form a self-tightening load-bearing structure. The greater the load on the gate 10, the tighter the fit between the support claws and the support block, ensuring stable bearing of the heavy load pressure of the ultra-large gate 10 and avoiding the risk of locking failure. The rigid support in the locked state can evenly transfer the load to the gate pier 20, preventing structural deformation caused by excessive local stress on the support block. In addition, the rotatable locking mechanism has a natural mechanical self-locking capability. In the event of a sudden power interruption, the support claws can maintain the locked state through friction with the support block, preventing the gate 10 from accidentally falling and providing additional safety redundancy for the system.

[0053] In some embodiments, the hydraulic gate step-by-step lifting system further includes: a control module, wherein pressure sensors are provided at the stop positions of the support claw and the support block, and the pressure sensors, the lifting device 30, and the lifting device 40 are all communicatively connected to the control module. The pressure sensors are used to generate pressure signals and send them to the control module. The control module is configured to: prohibit the lifting device 30 and the lifting device 40 from starting when the pressure value determined by the pressure signal is lower than the preset locking pressure, and drive the support claw to reset from the locked position to the unlocked position and then rotate it back to the locked position to lock the support block until the pressure value determined by the pressure signal reaches or exceeds the preset locking pressure, and then release the prohibition on starting the lifting device 30 and the lifting device 40.

[0054] After the support claw rotates to the locking position and moves down through the gate 10 to initially stop with the support block, the pressure sensor at the stopping point detects the contact pressure between the two in real time, generates a pressure signal, and transmits it to the control module. The control module compares the received pressure value with the preset locking pressure. If the pressure value does not meet the standard (below the preset value), the lifting device 30 and the lifting device 40 are immediately prohibited from starting. At the same time, the support claw is driven to reset from the current locking position to the unlocking position. Then, the support claw is controlled to rotate back to the locking position and move down through the gate 10 again to complete the stopping. The pressure sensor repeatedly detects and feeds back the pressure signal, and the control module continues to judge until the pressure value reaches or exceeds the preset locking pressure. At this time, the control module releases the prohibition on starting the lifting device 30 and the lifting device 40, allowing the system to perform subsequent lifting, raising, or lowering actions.

[0055] The step-by-step lifting system for hydraulic gates according to this application accurately judges the reliability of the fit between the support claws and the support block by setting a preset locking pressure threshold, completely eliminating the hidden danger of false locking and avoiding the risk of load transfer failure from the source. Manual intervention is required to correct locking problems caused by mechanical errors or contact deviations, significantly improving the system's automation fault tolerance and reducing manual inspection costs. It avoids chain failures such as gate 10 shaking and structural deformation caused by support failure during lifting or raising, ensuring the safety of equipment operation. Real-time monitoring and dynamic adjustment of the pressure signal improves the locking accuracy from "mechanical alignment level" to "controllable force level," providing quantifiable safety assurance for the heavy-load lifting and lowering of the ultra-large gate 10, and further enhancing the system's stability and reliability under complex working conditions.

[0056] In some embodiments, the control module is further configured to: after the support claw rotates from the unlocked position to the locked position, control the gate 10 to move downward so that the support block abuts against the corresponding support claw.

[0057] When the support claw needs to lock with the support block, first control the support claw to rotate from the unlocked position to the locked position, and then control the gate 10 to move down a small distance so that the support block abuts against the corresponding support claw. When the support claw rotates from the unlocked position to the locked position, although it has been aligned with the bottom of the support block through structural design, due to manufacturing tolerances, installation errors, or clearances in the rotating mechanism, there may be a small gap between the free end of the support claw and the bottom surface of the support block. At this time, effective load transfer cannot be formed. The control module controls the gate 10 to move down a certain distance, and then controls the gate 10 to move down a corresponding distance. The support block moves down synchronously with the gate 10, and its bottom surface will naturally contact and continuously adhere to the upward-sloping free end of the support claw until the gap is completely eliminated. The gate 10's own weight or the controllable driving force of the lifting device 40 makes the two tightly abut against each other, avoiding the risk of local stress concentration or false locking caused by gaps.

[0058] In some embodiments, the lifting device 40 raises the gate 10 by 20m. After the support claw of the first locking member 21 rotates to the locking position, it drives the gate 10 to descend by 0.5m so that the support block and the support claw stop. The lifting assembly lifts 10.5m at a time. When the second locking member 521 needs to be locked, it controls the support claw of the second locking member 521 to rotate to the locking position and then drives the gate 10 to descend by 0.5m so that the support block and the support claw stop.

[0059] According to the hydraulic gate step-by-step lifting system of the present application embodiment, the lifting device 40 is a piston-type hydraulic gate opener and the lifting device 30 is a plunger-type hydraulic gate opener.

[0060] According to the step-by-step lifting system for hydraulic gates in this application, the piston-type hydraulic gate opener features stable output force and high stroke control precision, enabling precise driving of the gate 10 to complete short-distance lifting and lowering adjustments (such as raising the gate 10 to the height of the adjacent mating part 11 or lowering it to achieve tight abutment between the support block and the support claw). Its closed-loop control characteristics effectively prevent impact or overshoot during fine-tuning of the gate 10, ensuring the accuracy of the locking and fitting action. The plunger-type hydraulic gate opener, with its rigid fit structure between the cylinder and the plunger, has the advantages of large stroke and high load-bearing capacity, enabling stable driving of the second bearing component 52 to complete long-distance lifting and lowering actions. It can maintain stable movement even under heavy load conditions of the bearing component 50, and the exposed plunger structure facilitates adaptation to the reciprocating extension and retraction requirements of the lifting device 30, reducing the risk of leakage in the hydraulic system. The combined application of the two hydraulic gate hoists ensures the reliability of the locking and switching process through the precise control of the piston type, while the heavy-duty capacity of the plunger type meets the large stroke drive requirements of the 50-ton bearing component, forming a complementary power system architecture that significantly improves the operational stability and durability of the entire step-by-step lifting system under complex working conditions.

[0061] According to the hydraulic gate step-by-step lifting system of this application, the stroke of the lifting device 40 lifting the gate 10 in a single operation is greater than the stroke of the lifting device 30 lifting the gate 10 in a single operation.

[0062] According to the hydraulic gate step-by-step lifting system of this application, the gate 10 can be quickly lifted to the preset intermediate height in the initial stage of lifting by the large stroke of the lifting device, reducing the operation time in the initial stage and improving the overall lifting efficiency. The lifting device 30 performs subsequent step-by-step lifting with a smaller single stroke, which can reduce the load impact during the single lifting process. It is convenient to achieve stable support and fine-tuning of the gate through the precise locking of the first locking member 21, the second locking member 521 and the mating part 11, thus balancing operation efficiency and operational safety.

[0063] The specific embodiments of the invention have been described in detail above, but these are merely examples, and the invention is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the invention are also within the scope of this invention. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of this invention should be covered within the scope of this invention.

Claims

1. A step-by-step lifting system for a hydraulic gate, characterized in that, include: The gate and gate piers are provided on both sides of the gate. The gate piers are provided with a first locking member. The gate is provided with a plurality of mating parts distributed along the height on both sides. The first locking member can selectively lock with the mating parts. A lifting device is installed on the gate pier, and the lifting device has a vertically telescopic lifting rod; A support assembly, wherein the support assembly is disposed at the top of the lifting rod; A lifting device is provided on the bearing assembly and located above the gate. The lifting device has a vertically telescopic lifting rod that passes through the gate.

2. The hydraulic gate step-by-step lifting system according to claim 1, characterized in that, The bearing assembly includes a first bearing member and a second bearing member that are stacked and separable in the vertical direction. The lifting device is disposed on the first bearing member. The second bearing member is connected to the lifting rod. The second bearing member is provided with a second locking member, which can selectively lock with the mating part.

3. The hydraulic gate step-by-step lifting system according to claim 2, characterized in that, The first support member has a protrusion at its bottom and the second support member has a groove at its top that matches the protrusion. When the first support member and the second support member are stacked, the protrusion is embedded in the groove.

4. The hydraulic gate step-by-step lifting system according to claim 2, characterized in that, The first support member includes a connecting part disposed in the middle and a balancing part located on both sides of the connecting part. The balancing part extends along the width direction of the gate, and the connecting part is connected to the lifting device.

5. The hydraulic gate step-by-step lifting system according to claim 2, characterized in that, The second support member includes a frame surrounding the outer periphery of the gate, the frame forming a clearance passage through which the gate passes.

6. The hydraulic gate step-by-step lifting system according to claim 2, characterized in that, The mating part is a support block. Both the first locking member and the second locking member include a rotatable support claw. The support claw can rotate between a locked position and an unlocked position. When the support claw is in the locked position, the free end of the support claw extends upward at an angle and abuts against the bottom surface of the support block. When the support claw is in the unlocked position, the support claw rotates upward and the free end of the support claw disengages from below the support block.

7. The hydraulic gate step-by-step lifting system according to claim 6, characterized in that, Also includes: The control module includes a pressure sensor at the stop point between the support claw and the support block. The pressure sensor, the lifting device, and the hoisting device are all communicatively connected to the control module. The pressure sensor generates a pressure signal and sends it to the control module. The control module is configured as follows: When the pressure value determined by the pressure signal is lower than the preset locking pressure, the lifting device and the hoisting device are prohibited from starting. The support claw is driven to reset from the locked position to the unlocked position and then rotate back to the locked position to lock the support block. The prohibition on starting the lifting device and the hoisting device is lifted when the pressure value determined by the pressure signal reaches or exceeds the preset locking pressure.

8. The hydraulic gate step-by-step lifting system according to claim 7, characterized in that, The control module is also configured to: After the support claw rotates from the unlocked position to the locked position, the gate is controlled to move downward so that the support block abuts against the corresponding support claw.

9. The hydraulic gate step-by-step lifting system according to any one of claims 1-8, characterized in that, The lifting device is a piston-type hydraulic gate opener, and the jacking device is a plunger-type hydraulic gate opener.

10. The hydraulic gate step-by-step lifting system according to any one of claims 1-8, characterized in that, The lifting device can lift the gate by a single stroke greater than the jacking device can lift the gate by a single stroke.

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